Keyboard



FIG. 1 is a top, front, and right side perspective view of an embodiment of a keyboard, with the easel propped upwards, showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a left side elevation view thereof;

FIG. 8 is a top, front, and right side perspective view of the embodiment of our keyboard design with the easel put down;

FIG. 9 is a front elevation view thereof;

FIG. 10 is a rear elevation view thereof;

FIG. 11 is a top view thereof;

FIG. 12 is a bottom view thereof;

FIG. 13 is a right side elevation view thereof; and,

FIG. 14 is a left side elevation view thereof.

The feet, screws and connectors depicted in broken lines are for environmental purposes only and form no part of the claimed design. 

The ornamental design for a keyboard, as shown and described. 